Synthesis of pyrano[2,3‐c]pyrazole derivatives using Fe3O4@SiO2@piperidinium benzene‐1,3‐disulfonate (Fe3O4@SiO2 nanoparticle‐supported IL) as a novel, green and heterogeneous catalyst.

Autor: Ghorbani‐Vaghei, Ramin, Mahmoodi, Jafar, Shahriari, Azadeh, Maghbooli, Yaser
Předmět:
Zdroj: Applied Organometallic Chemistry; Dec2017, Vol. 31 Issue 12, p1-N.PAG, 8p, 5 Diagrams, 4 Charts, 4 Graphs
Abstrakt: A simple, green and efficient protocol for the one-pot four-component synthesis of pyrano[2,3-c]pyrazole derivatives produced from reaction between aryl aldehydes, ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of nano magnetic piperidinium benzene-1,3-disulfonate was synthesized in water at 60 °C. The Fe3O4@SiO2 nanoparticle-supported IL was designed and synthesized. The present process offers advantages such as clean reaction, short reaction time, good to excellent yield, easy purification and easy recoverable catalyst. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index